*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #0a0a0a;
    --surface: #141414;
    --border: #2a2a2a;
    --text: #e0e0e0;
    --text-dim: #888;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #22c55e;
    --error: #ef4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 480px;
    padding: 2rem;
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.subtitle {
    color: var(--text-dim);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.dropzone {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 3rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.dropzone:hover, .dropzone.drag-over {
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.05);
}

.dropzone-content svg {
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.dropzone-content p {
    color: var(--text-dim);
    font-size: 0.875rem;
}

.link {
    color: var(--accent);
    cursor: pointer;
    text-decoration: underline;
}

.options {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.option-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.option-group label {
    font-size: 0.8125rem;
    color: var(--text-dim);
    width: 80px;
    flex-shrink: 0;
}

.option-group select, .option-group input {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    color: var(--text);
    font-size: 0.875rem;
}

.btn {
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 0.25rem;
}

.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-small { padding: 0.375rem 0.75rem; font-size: 0.8125rem; margin-top: 0; }

.progress-bar {
    background: var(--surface);
    border-radius: 4px;
    height: 6px;
    overflow: hidden;
    margin: 0.5rem 0;
}

.progress-fill {
    background: var(--accent);
    height: 100%;
    width: 0%;
    border-radius: 4px;
    transition: width 0.15s;
}

.progress-text {
    font-size: 0.8125rem;
    color: var(--text-dim);
    text-align: right;
}

.file-name {
    font-size: 0.875rem;
    color: var(--text);
    word-break: break-all;
}

.result {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--surface);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.result-success p {
    color: var(--success);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.result-url {
    display: flex;
    gap: 0.5rem;
}

.result-url input {
    flex: 1;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    color: var(--text);
    font-size: 0.8125rem;
    font-family: monospace;
}

.result-meta {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-dim);
    word-break: break-all;
}

.error {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    color: var(--error);
    font-size: 0.875rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.auth-form input {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.625rem 0.75rem;
    color: var(--text);
    font-size: 0.875rem;
}

footer {
    margin-top: 2rem;
    text-align: center;
}

footer a {
    color: var(--text-dim);
    font-size: 0.75rem;
    text-decoration: none;
}

footer a:hover { color: var(--accent); }

.hidden { display: none !important; }